2005 Lexus GX470 engine

AUDIO
299
CAUTION
Do not drive with using the headphone. Otherwise,
you may be hard to hear the sound from the outside
while using the headphone and may cause an
accident.
 With DVD player:
Conversational speech on some DVDs is recorded at
a low volume to emphasize the impact of sound
effects. If you adjust the volume assuming that the
conversations represent the maximum volume level
that the DVD will play, you may be startled by louder
sound effects or when you change to a different
audio source. Be sure to adjust the volume with this
in mind.
Make sure the volume is not increased, before you
turn on the headphone.
NOTICE
To prevent the battery from being discharged, do not leave the audio system on longer than necessary whenthe engine is not running.

AUDIO
313
NOTICE
The screen should be cleaned with a dry soft cloth.If the screen is pushed by hand or wiped with a hardcloth, the surface of the screen may be scratched.
Benzene or alkaline solutions may damage thecoated surface of the screen.

To prevent the battery from being discharged, do not turn on the rear seat entertainment system longerthan necessary when the engine is not running.

AUDIO
322
CAUTION
Do not drive with using the headphone. Otherwise,
you may be hard to hear the sound from the outside
while using the headphone and may cause an
accident.
 With DVD player:
Conversational speech on some DVDs is recorded at
a low volume to emphasize the impact of sound
effects. If you adjust the volume assuming that the
conversations represent the maximum volume level
that the DVD will play, you may be startled by louder
sound effects or when you change to a different
audio source. Be sure to adjust the volume with this
in mind.
Make sure the volume is not increased, before you
turn on the headphone.
NOTICE
To prevent the battery from being discharged, do not leave the audio system on longer than necessary whenthe engine is not running.

AUDIO
377
Manufactured under license from Dolby Laboratories.
ªDolbyº, ªPro Logicº, and ª
º are trademarks of Dolby
Laboratories. Confidential unpublished works.
1992 Ð 1997 Dolby Laboratories. All rights reserved.
This product incorporates copyright protection
technology that is protected by method claims of certain
U.S. patents and other intellectual property rights owned
by Macrovision Corporation and other rights owners. Use
of this copyright protection technology must be
authorized by Macrovision Corporation, and is intended
for home and other limited viewing uses only unless
otherwise authorized by Macrovision Corporation.
Reverse engineering or disassembly is prohibited.
ªdtsº is a trademark of Digital Theater Systems, Inc.Input terminal adapter
The rear entertainment system plays videos and sound when
your audio system is connected to the input terminal adapter
on the rear console box. For details, refer to the
manufacturer's instructions.
To use the input terminal adapter, push the lid.

AUDIO
380
NOTICE
To prevent the battery from being discharged, do notuse the power outlet longer than necessary when theengine is not running.
Close the power outlet lid when the power outlet isnot in use. Inserting anything other than anappropriate plug that fits the outlet, or allowing anyliquid to get into the outlet may cause electricalfailure or short circuits.
The power outlet is not designed for the following electric
appliances even though their power consumption is
under 115 VAC/100W. These appliances may not operate
properly.
 Appliances with high initial peak wattage: Cathode±ray
tube type televisions, compressor±driven refrigerators,
electric pumps, electric tools, etc.
 Measuring devices which process precise data: Medical
equipment, measuring instruments, etc.
 Other appliances requiring an extremely stable power
supply: Microcomputer±controlled electric blankets, touch
sensor lamps, etc.
Certain electrical appliances may cause radio noise.Headphone input jacks
To use the jack, push the lid.

SECTION 3 ± 1
392
STARTING AND DRIVING
Starting and driving
Three±way catalytic converters393
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . .
Engine exhaust caution 396
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . .
Before starting the engine 398
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . .
Ignition switch 398
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake 400
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to start the engine 401
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 403
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . .
Four±wheel drive system 411
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . .
Rear view monitor system 415
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . .
Cruise control 419
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear height control air suspension 422
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . .
Electronic modulated suspension 429
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . .
Active traction control system 430
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . .
Vehicle stability control system 433
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . .
Downhill assist control system 436
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . .
Hill±start assist control 439
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . .
Brake system 442
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressure warning system 446
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . .
Brake pad wear limit indicators 456
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . .
Limited±slip differential 457
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . .

STARTING AND DRIVING
393
THREE±WAY CATALYTICCONVERTERSThree±way catalytic converters are emission control
devices installed in the exhaust system.
The purpose is to reduce pollutants in the exhaust gas.
CAUTION
Keep people and combustible materials away from
the exhaust pipe while the engine is running. The
exhaust gas is very hot.
 Do not idle or park your vehicle over anything that
might burn easily such as grass, leaves, paper or
rags.

STARTING AND DRIVING
394
NOTICE
A large amount of unburned gases flowing into thethree±way catalytic converter may cause it to overheatand create a fire hazard. To prevent this and otherdamage, observe the following precautions:
Use only unleaded gasoline.
Do not drive with an extremely low fuel level; runningout of fuel could cause the engine to misfire, creatingan excessive load on the three±way catalyticconverter.
Do not allow the engine to run at idle speed for morethan 20 minutes.
Avoid racing the engine.
Do not push±start or pull±start your vehicle.
Do not turn off the ignition while the vehicle ismoving.
Keep your engine in good running order.Malfunctions in the engine electrical system, electricignition system or fuel system could cause anextremely high three±way catalytic convertertemperature.